27966879 has 24 divisors (see below), whose sum is σ = 43570800. Its totient is φ = 17228160.

The previous prime is 27966877. The next prime is 27966889. The reversal of 27966879 is 97866972.

It is not a de Polignac number, because 27966879 - 2¹ = 27966877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27966871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5017 + ... + 9005.

It is an arithmetic number, because the mean of its divisors is an integer number (1815450).

Almost surely, 2^27966879 is an apocalyptic number.

27966879 is a deficient number, since it is larger than the sum of its proper divisors (15603921).

27966879 is a wasteful number, since it uses less digits than its factorization.

27966879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055 (or 4052 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 27966879 is about 5288.3720557465. The cubic root of 27966879 is about 303.5391179663.

The spelling of 27966879 in words is "twenty-seven million, nine hundred sixty-six thousand, eight hundred seventy-nine".